- a rare, metallic element having a bright-gray color, a metallic luster, and a high melting point, 3410° C, and found in wolframite, tungstite, and other minerals: used in alloys of high-speed cutting tools, electric-lamp filaments, etc. Symbol: W; atomic weight: 183.85; atomic number: 74; specific gravity: 19.3.
Origin of tungsten
Examples from the Web for tungsten
The raw materials— tin, tantalum, tungsten and gold—were dubbed “conflict minerals.”Aaron Rodgers Takes Aim at Congo’s ‘Blood Minerals’ War
December 3, 2014
The Mojave is rich with silver, tungsten, gold, and iron deposits.The Mole Man’s Tunnel to Nowhere
November 28, 2014
In China, for example, tungsten, tantalum, tin and gold are mined and ore is imported from other countries.Helter Smelter No More: Moving to Conflict Free Minerals
June 26, 2014
Tungsten, tantalum, tin and gold are used to produce many common consumer electronics devices.Will You Choose a Conflict-Free Microprocessor?
May 29, 2014
And when you review the periodic table, take special note of Tungsten, or Wolfram.How I Write: Doug Dorst
February 26, 2014
To begin with metals, uranium melts at 1150 centigrade, and tungsten at 3370 and iridium at 2350.Pariah Planet
There are two styles in common use, the carbon and the tungsten lamp.Electricity for the farm
Frederick Irving Anderson
Down under all that tungsten there is the place of laughter.The Pagan Madonna
Chromite moves from two principal sources; tungsten also from two.The Economic Aspect of Geology
C. K. Leith
What is the "efficiency" of a 40-watt tungsten lamp if it gives 34 candle power?Physics
Willis Eugene Tower
- a hard malleable ductile greyish-white element. It occurs principally in wolframite and scheelite and is used in lamp filaments, electrical contact points, X-ray targets, and, alloyed with steel, in high-speed cutting tools. Symbol: W; atomic no: 74; atomic wt: 183.85; valency: 2–6; relative density: 19.3; melting pt: 3422±20°C; boiling pt: 5555°CAlso called: wolfram
Word Origin and History for tungsten
rare metallic element, 1796, from Swedish tungsten "calcium tungstate," coined by its discoverer, Swedish chemist Karl Wilhelm Scheele (1742-1786) from tung "heavy" + sten "stone." Used earlier as the name for calcium tungstate (1770). Atomic symbol W is from Latin wolframium, from German Wolfram "iron tungstate" (see wolfram).
- A hard brittle corrosion-resistant metallic element having the highest melting point of any metal and used in high-temperature structural materials and in electrical elements, notably lamp filaments. Atomic number 74.wolfram
- A hard, gray to white metallic element that is very resistant to corrosion. It has the highest melting point of all elements, and it retains its strength at high temperatures. It is used to make light-bulb filaments and to increase the hardness and strength of steel. Atomic number 74; atomic weight 183.84; melting point 3,410°C; boiling point 5,900°C; specific gravity 19.3 (20°C); valence 2, 3, 4, 5, 6. Also called wolfram See Periodic Table.